Waruwu, Christ Bastian, Dani Saepuloh, Muhammad Mukhlis Khoirudin, and Budi Nurhidayatullah. 2026. “Transformer Model for Long-Term Stock Market Volatility Prediction”. Jurnal Teknik Informatika Dan Sistem Informasi 12 (2). Jakarta, Indonesia:255-64. https://doi.org/10.28932/jutisi.v12i2.13684.